Plant Structure
What is the source of free energy (ΔG) for moving protons out of mitochondria against their concentration and electrical gradients?

The redox reactions of electron transport
Creatine phosphate
ATP
Glycolysis

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Plant Structure
Which of the following statements about the outer mitochondrial membrane is not true?

The outer membrane is about 50% lipid and 50% protein by weight
The outer membrane is impermeable to hydrogen ions
The outer membrane contains porins
The outer membrane is highly permeable to substances of small molecular weight

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Plant Structure
Which is not true about a photon?

It is trapped by photosynthetic unit
The shorter the wavelength, the greater the energy of the photons
It donates electron to reduce carbon dioxide to glucose
It is a packet of light energy

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